Diesel Engine Oil CI-4 15W-40 for Heavy Duty Engines
产品说明
Specifications and Approvals
- • API CI-4/SL
- • ACEA E7
- • Cummins CES- 20078
- • Cummins CES- 20077
- • Cummins CES- 20076
- • Volvo VDS-3
- • JASO DH-1
- • CAT ECF-2
- • MAN M 3275
- • MB Approval 228.3
- • Mark EO-N
- • Renault RVI RLD-2
- • MTU Type 2
- • DEUTZ DQC III-18
- • Detroit Diesel DDC 93K215
- • Global DHD-1
Performance Benefits of CI-4 15W-40 Diesel Engine Oil
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• Superior wear protectionReduces friction and protects critical engine components even under heavy-duty conditions.
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• Excellent soot controlMinimizes sludge and deposits to keep engines clean and efficient.
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• Outstanding oxidation stabilityMaintains oil viscosity over long service periods, extending oil life.
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• Enhanced engine performanceOptimized viscosity improves fuel efficiency and reduces internal resistance.
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• Reliable high-temperature performanceProvides stable lubrication for engines in severe operating environments.
Applications of CI-4 15W-40 Diesel Engine Oil
Applications
CI-4 15W-40 diesel engine oil is designed for heavy-duty diesel engines operating under high load and harsh environments. It is widely used in:
- Heavy-duty trucks and commercial fleets
- Construction and mining machinery (excavators, loaders)
- Agricultural equipment such as tractors and harvesters
- Industrial diesel generators and power systems
Recommended for engines requiring API CI-4 performance level, ensuring reliable protection, extended engine life, and stable performance in demanding conditions.
Which Engines Use CI-4 15W-40 Engine Oil?
CI-4 15W-40 engine oil is ideal for modern and older heavy-duty diesel engines, especially those operating in high-load, high-temperature, or stop-and-go environments.
It is commonly used in long-haul trucks, off-road construction equipment, mining machinery, and industrial power systems requiring durable lubrication and extended oil drain intervals.
CI-4 vs CF-4 Diesel Engine Oil
Compared with CF-4 diesel engine oil, CI-4 provides significant improvements in engine protection and performance.
- Better soot control – Maintains viscosity under heavy load
- Enhanced wear protection – Extends engine life
- Longer oil drain intervals – Reduces maintenance costs
- Improved oxidation stability – Suitable for modern diesel engines
As a result, CI-4 engine oil is more suitable for engines equipped with EGR systems and operating under severe conditions.
FAQ – CI-4 15W-40 Diesel Engine Oil
What is CI-4 15W-40 diesel engine oil used for?
It is used for heavy-duty diesel engines such as trucks, construction machinery, and industrial equipment operating under severe conditions.
What are the advantages of 15W-40 viscosity?
15W-40 provides excellent balance between cold start performance and high-temperature protection, making it ideal for a wide range of climates.
Can CI-4 15W-40 be used in construction equipment?
Yes, it is widely used in excavators, loaders, and mining machinery requiring strong wear protection.
Does this oil support extended drain intervals?
Yes, its advanced formulation allows longer oil drain intervals compared to older API categories.
Do you provide OEM or private label services?
Yes, we offer OEM manufacturing and private label solutions for global distributors.
Looking for a Reliable Diesel Engine Oil Supplier?
YUANGEN Petrochemical is a professional diesel engine oil manufacturer supplying high-performance CI-4 15W-40 engine oil to global distributors and industrial clients.
- ✔ Bulk supply with consistent quality
- ✔ OEM / Private Label customization
- ✔ Fast international delivery
- ✔ Professional technical support
Request a quote today or contact our technical team for product recommendations.
Related Diesel Engine Oil Products
- CF-4 15W-40 Diesel Engine Oil
- CF-4 10W-40 Diesel Engine Oil
- CH-4 15W-40 Diesel Engine Oil
- CI-4 10W-30 Diesel Engine Oil
Typical Test Data
Test Item | Result | Method |
Density (20℃), kg/m³ | 870 | ASTM D4052 |
Kinematic Viscosity (100℃) mm²/s | 15.2 | ASTM D445 |
Kinematic Viscosity (40℃) mm²/s | 112.1 | ASTM D445 |
Viscosity Index | 142 | ASTM D2270 |
Pour Point, ℃ | -33 | ASTM D97 |
Flash Point (COC), ℃ | 236 | ASTM D92 |
Viscosity, Cold Crank (-20℃), mPa.s | 6050 | ASTM D5293 |
Base Number, mg KOH/g | 11.5 | ASTM D2896 |
Sulfated Ash, mass% | 1.39 | ASTM D874 |
Health, Safety & Environment
Avoid contact with skin. Use impervious gloves with used oil. After skin contact, wash immediately with soap and water.
Take used oil to an authorised collection point. Do not discharge into drains, soil or water.